Improvement in furnace-grates



J. REYNOLDS.

I FURNACE-GRATE. kN,17'9,348 Patented June 27,1876.

1 I www@ W ni@ AN. FETB, PHOTO-LITHOGRAFHER, WSHINBTON. D. C.

JESSE REYNOLDS, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT `IN FURNACE-GRATES.

Specification forming part of Letters Patent No. 179,348, dated June 27,1876; application filed May 24, 1876.

To all whom it may concern Be it known that I, Jesse REYNOLDS, ofPhiladelphia, Pennsylvania, have invented certain Improvements inFurnace-Grates, of which the following isa specification:

The main object of my invention is to so construct a grate with rockingbars that it will serve as an eective medium for the ready withdrawalfrom the fuel of superfluous ashes and cinders.

In the accompanying drawing, Figure 1 is a side view of my improvedgrate; Fig. 2, a plan view; Fig. 3, a transverse section; and Figs. 4and 5, detached views.

A and A represent the opposite sides, and B the rear, of a furnace orlire-place, and to each of the opposite sides is secured a bar, D,carrying a series of rollers, d, which support the gratefrarne, thelatter consisting of the opposite sides G G1, the front end G2, and rearend G3, and the whole being made in two parts, secured together at thepoints .fr x.

A series of shafts, H, of the form best observed in the enlarged view,Fig. 4, have their bearings in the opposite sides G G1 of thegrate-frame, and on each shaft is cast a series of comparatively thinbars, h, strengthened by ribs i i and j.

From the middle of each shaft H depends an arm, I, the arms of theseveral bars being connected together by a rod, K, and the outer end ofthe latter being connected to one arm of a lever, L, which is pivoted atm to the grateframe, and which has a socket, n, for the reception of abar, M, on operating which the several shafts H will be rocked to andfro simultaneously in contrary directions.

'Ihe relations of the bars of the several rock-shafts to each other willbe best understood, by reference to Fig. 2 of the drawing,

-where it will be observed that the bars project so as to form teeth onopposite sides of the shaft, the teeth of one shaft projecting into thespaces between the teeth of the adjoining shafts.

The action of the rocking bars on the superincumbent ashes and cinderswhich tend to choke the grate will be best understood by reference toFigs. 4 and 5, the latter figure representing the adjoining teeth of twoadjacent rock-shafts.

As the lever lVI is Vibrated the teeth y of one shaft rise, and theteeth y of the adjoining shaft descend, as indicated by the arrows, sothat any cinders caught between the teeth during this movement will bedisintegrated by the ribs z' as they approach each other, and when it isremembered that this operation takes place throughout the entire grateon operating the rock-shafts the efficacy of my invention in`withdrawing from the fuel superfluous ashes and cinders will be understood.

The roclcshafts H are elongated, as shown in Figs. land 4, so that whenthe teeth on one side of the shaft are elevated, and the adjoining teethon the adjacent shaft depressed, the elongated shafts will close theends ofthe spaces thus formed vand prevent the escape of fuel at thesepoints.

As the grate-frame is supported on the rollers a it can be readily drawnoutward when the fuel has to be dumped into the ashpit, or when theentire grate has to be removed for repairs or other purposes.

On each side A and A of the dre-place, and at the rear of the same,there is a ledge, p, which prevents the grate-frame from rising, andserves as a support for a lining, q, of tire-brick or other equivalentmaterial, which prevents the fuel from gaining access to thegrate-frame.

I claim as my inventionl. The combination, in a grate, of rockshafts H,provided with bars la, having ribs it', said bars'being so arranged onthe shafts as to form teeth for crushing and grinding the cinders, asthe said shafts are rocked simultaneously and in the same direction, allsubstantially as set forth.

2. The combination of the bars h and their ribs t' with rockshafts H,elongated as specified.

3. The combination of the series of rockshafts H and their bars with theframe G, G1, G2, and G3, formed in two sections joined together,substantially as described.

4. The combination of the frame and its rock-shafts With thesupporti11g-rollers a, to permit the Withdrawal of said frame, asdescribed.

5. The combination of the frame and its rook-shafts with the ledges 19on the sides and rear of the fire-place, as and for the purpose setforth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

JESSE REYNOLDS.

Witesses:

HARRY HoWsoN, J r., HARRY SMITH.

